1023650878 has 32 divisors (see below), whose sum is σ = 1645159680. Its totient is φ = 477603000.

The previous prime is 1023650863. The next prime is 1023650879. The reversal of 1023650878 is 8780563201.

It is a super-2 number, since 2×1023650878² = 2095722240060341768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1023650878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023650879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 973453 + ... + 974503.

It is an arithmetic number, because the mean of its divisors is an integer number (51411240).

Almost surely, 2^1023650878 is an apocalyptic number.

1023650878 is a deficient number, since it is larger than the sum of its proper divisors (621508802).

1023650878 is an equidigital number, since it uses as much as digits as its factorization.

1023650878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 1023650878 is about 31994.5445037119. The cubic root of 1023650878 is about 1007.8222784171.

The spelling of 1023650878 in words is "one billion, twenty-three million, six hundred fifty thousand, eight hundred seventy-eight".